steve harrigan streaming live for us from cairo right now. steve? >> reporter: jon, these are the biggest and the largest anti-presidential crowds we've seen, and they're still pouring in by the thousands. we can hear them chanting behind us, we want the regime to leave. these protests are a mix of different kinds of political parties, some of whom are secularists, others national i'm sorries, a real mix of young and old too. they seem to be united by an anger, the president gave himself the ability to issue acts that can't be reviewed by the courts. the president himself met a show of compromise yesterday, he met with some of his critics here in cairo. he said his powers were only temporary, and they would only apply to matters of national sovereignty, but that has not been enough for the critics or the protesters. they're streaming in here, really a show of force by those opposed to the president. muhammad morsi has a tremendous amount of popular support as well, the muslim brotherhood canceled its march today, they were afraid if they marched at